John alexander stevenson



(No Model.) I

J. A. STEVENSON.

GATE.

Patented Deer 18 .1 @Yieiasorz.

dla aeyg mow ' UNITED STATES PATENT OFFICE.

.IOIIN ALEXANDER STEVENSON, OF ATIVOOD, ILLINOIS.

GATE.

SPECIFICATION forming part of Letters Patent No. 394,736, dated December 18, 1888.

Application filed September 8,1888. Serial No. 284,919. (No model.)

To all whom it may concern:

Be it known that I, JOHN ALEXANDER STEVENSON, a citizen of the United States, residing at Atwood, in the county of Piatt and State of Illinois,have invented certain new and useful Improvements in Gates; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention has relation to improvements in that class of gates known as sliding and rolling gates; and it has for its object to provide a system of levers and pivoted bars whereby the gates may be conveniently opened and closed and locked in such positions by a person while on foot or mounted upon horseback or in a vehicle.

The invention will be fully understood from the following description and claims, when taken in connection with the accompanying drawing, in which the figure is a perspective view of a pair of gates, showing my improved mechanism for operating the same.

Referring by letter to the said drawing, A A indicate two vertical posts, arranged one upon each side of the roadway or entrance to the gate. These posts support at their upper ends the guide-frame B, or frame for the attachment of jointed or pivoted levers, as will be hereinafter more fully described. At a suitable distance from one of the posts A, in the same longitudinal plane, is an upright or post, 0, which is designed to serve as a support for pivoted levers, hereinafterreferred to.

I) D indicate two gates, which may be of the form usually employed, having their top rails extended rcarwardly and designed to serve as a track for their proper movements. These gates are also each provided with an elevated horizontal bar, (1, arranged a suitable distance above the track-rail I), for the attachment of jointed levers, which will be presently described.

E and F indicate friction-rollers, there be ing one employed on each of the posts A and one on each of the fence-posts G. These rollers have their peripheries grooved to receive the lower edges of the track-rails l) of the gates, so as to guide the latter in their movements, there being a block, H, employed on each of the posts A at a suitable point above the track-rail b to prevent the gates from being lifted. off the rollers.

1 indicates latch-posts, which are each provided with latches (1, there being but one shown; and J indicates the latch-lever, which is pivoted about midway of its length to one of the posts A, and extends in a position relatively at right angles to the plane of the gates. This latch bar or lever J is connected near one end with a pivoted lever, K, by means of an arm, e, and the outer end of this lever K, or the end adjacent to the gates, is pivotally connected by means of a vertical bar, f, with a longitudinal beam, M. The longitudinal beam M, which extends in the plane of the gates, is pivoted at one end to the upper end of the post 0, the opposite end having suspended therefrom a suitable weight, g, and

the said beam M is connected by means of the arms h and i with one of the fenceposts G.

By the employment of latches d it will be seen. that the gate may be held in a locked position both when opened and closed.

WVhen one end of the lever J has been depressed to open the gate, it is slipped beneath one of the latches and held thereby, and when raised to close the gate the opposite end will be depressed and held by a similar latch on the opposite latch-post.

L indicates a lock-bar, which is pivoted at its outer end to the post 0, as shown. Its inner end is reduced or shouldered, as' shown at l, to overlap the inner end of the bar K. The lower inner end of this bar L is provided with a plate, m, which is adapted to engage and normally bear against the outer end of the bar or, which is pivoted near the said engaging end to the elevated rail (4 of one of the gates. The elevated rail a of the opposite gate has pivoted to it a similar bar, p, and the adjacent ends of these bars a and p are pivotally connected with the crown-frame N by means of pivoted depending levers P, and these levers are in turn connected with the pivoted horizontal beam M above the meeting-point of the gates by means of arms Q through the medium of short arms R, which are fixed obliquely to the depending pivoted arms P. These short arms R have their lower ends fixed to the depending arms P near the upper ends of the latter, and extend upwardly in opposite directions, from which points the arms Q are attached.

From this eonstiruetionit will be seen that when the bar or beam M has been elevated the arms 1", through the medium of the arms Q and the short arms R, will be moved in opposite direetions. 'lhis nmvement, through the medium of the arms 2) and n, will drive the gates away from each other, so as to roll upon their bez'lrings to an open position, when, by simply allowing the said heam M to eome down or be depressed at its weighted end, the lllOYGlTlGlll'S ot the arms and eonneeting-levers will be reversed and the gates drawn to a elosed position. It will also he observed from the foregoing description that the bar L will retain the gates in a locked position when elosed until its plate m has been disengaged from the outer end of the bar 11: and it will be furtherlmnre observed that by simply drawing down the outer or handle portion of one end of the bar J the inner end of the lever K will be simultaneously brought into aetion beneath the lover or bar 'I) and disengage the latter from the end 01'' the bar 11, which is necessary before the operating-levers will he allowed to aett.

The lever orhar J shouldhepivoted in such a manner to the post A as to permit a lateral movement sut'tieient to allow the end of the said bar J to slip beneath the eateh (Z of the eorrespoi'ldiug post, T, when the bar or lever 'has been depressed at either end.

Having described my invention, what I claim is 1. In a gate, the eombination, with the upright frame and the rolling gates carrying a traelebar, as deseribed, ot' the hand-lever or lateh-lever pivoted to the upright frame, the pivoted har eonneetet'l with the said lateh lever, the lock-bar pivoted at one end to one 01. the tenee-postis and havin an engaging-plate on its opposite end,the pivotet'l arms depending from the llpl'lglltl frame, the pivoted and weighted horizontal beam M, the arms eonneetiug said beam with the pivoted depending arms, and the arms eomieeting the gates with. the said de )ending arms, one ol the said arms pivoted to the gates being adapted to engage one end of the pivoted loelebar or plate thereon, substantially as speeitied.

2. In a gate, the combination,with the main supportiilg-frame, of sliding or rolling gates, the lever 11, pivoted to one of the gates, a lever eonneeting one end of said pivoted lever with the upper portion of the main frame, the pivoted look-bar L, adapted to engage one end oi the said pivoted lever, the pivoted weighted beam M, the pivoted hand-lever, and levers eonneeting the hand-lever with said weighted beam and with pivoted lever K, in'laptet'l to lift the engaging end of the loek-bar, snbstantiallv as s )eeitied.

In testimony whereof I at't'ix my signature in presenee of two witnesses.

JOHN ALEXANDER S'IEVENSON.

\Vitnesses:

.I'. '13. lint-minnow, C. M. FL'ICTKINUE'H. 

